Sheet-metal-corrugating machine.



PATENTED DEC. 18, 1906.

I. W. NUMAN. SHEET METAL GORRUGATING MACHINE.

APPLICATION FILED 00122, 1905.

2 SHEETS-SHEET 1.

INVE N TOR WITNESSES BYJQM can WAsHlNcmN, 04 c.

No. 838,568. PATENTED DEC. 18, 1906.

I; W. NUMAN.

SHEETMETAL OORRUGATING MACHINE. APPLIOATION FILED 001-2, 1905.

INVENTOR lSI/ac "(A/1071022.

BYJZMFJM ATTORNEY WITNESSES n4: mmms PETERS ca, WAsHlrvcYcN, n. c.

ISAAC W. NUMAN, OF CANTON, OHIO.

SHEET-NIETAL-CORRUGATING MACHINE.

Specification of Letters Patent.

Patented Dec. 18, 1906.

Application filed October 2, 1905. Serial 1%. 281,089.

To all 11/71/0111, it may concern:

Be it known that I, ISAAC W. NUMAN, a citizen of the United States,residing at Oan ton, in the county of Stark and State of Ohio, haveinvented certain new and useful Improvements in Sheet-Metal-CorrugatingMachines; and I do hereby declare that the following is a full, clear,and exact description of the same, reference being had to the annexeddrawings, making a part of this specification, and to the numerals ofrefer ence marked thereon, in which Figure 1 is a perspective viewshowing the machine applied to use and illustrating a sheet of metalpartially-corrugated. Fig. 2 is a view of a finished corrugated sheet.Fig. 3 is a rear elevation showing the corrugated rolls in properrelative position. Fig. 4 is a detached view of a completed column.

The present invention has relation to machinery specially designed tocorrugate or flute sheets of metal which are afterward to be broughtinto a cylindrical form to produce a tapered column and at the same timetaper the flutes or corrugations in such manner that after thecorrugated sheet has been brought into a cylindrical form the flutes orcorrugations will conform in a geometrical sense with the taper of thecolumn.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

In the accompanying drawings, 1 represents the roll-housings, whichhousings may be supported upon any suitable foundation or base 2 and ofcourse are to be held in a true upright position or in such a positionthat the corrugating-rolls 3 and 4 will be held in proper relation withreference to each other. The rolls 3 and 4 are properly n1ount ed uponsuitable shafts or axles 5 and 6. The shaft 5 is properly j ournaled inthe stationary bearings 7 and the shaft 6 in the adjustable bearings 8,by which arrangement the rolls 3 and 4 can be brought to and from eachother a sufficient distance to properly regulate the pressure necessaryto produce the corrugations or flutes in the sheets of metal as they arepassed between the peripheries of the rolls 3 and 4. For the purpose ofcausing the rolls 3 and 4 to rotate in proper unison the shafts 5 and 6are provided with the gearwheels 9 and 10. The teeth of said wheelsshould be so formed that they can come and go to and from each otherwithout throwlng said gear-wheels out of mesh. Upon the peripheries ofthe rolls 3 and 4 are located the ribs 11, which ribs are tapered, andof course by reason of their taper said ribs are spiral concentricallyto the peripheries of the rolls. The center or intermediate rib of eachroll is notlocated spirally upon the peripheries of said rolls; but theremaining ribs must neces sarily be located spiral upon the peripheriesin order that they may be perfectly parallel throughout their entirelengths. By reason of the taper of the ribs 11 the distance between theextreme outer ribs is greater at their large ends than it is between theouter ribs of the small ends of said ribs, and in feeding the sheetsthey are started so that the large ends of the ribs 11 will press thecorrugations or flutes in the sheets, and of course as the sheets arefed through the proper taper will be given to the corrugations or flutesdesigned to be formed in the sheet.

It will of course be understood that the rolls 3 and 4 should be formedof such a diameter that one revolution of each roll will corrugate thesheet throughout its entire length, or, in other words, if the sheetdesigned to be corrugated is nine feet long the circumference of theribs should be nine feet, or of sufficient length to act upon the entirelength of the sheet. It will be understood that in some instances it maybe desired or become necessary to rotate one of the rolls independent ofthe other, and when this is desired the upper roll can be elevated so asto bring the gear-wheels 9 and 10 out of mesh, at which time the rollscan be adjusted with reference to each other so as to produce the propercorrugations or flutes in the sheets designed to be passed through.

For the purpose of giving a slight yielding movement as between the tworolls 3 and 4 the springs 12 are interposed between the bearings 7 andS; but when it is desired to set the rolls so that there can be 110relative movement as between the rolls 3 and 4 the levers 13 areprovided, through which levers the shaft 6 is journaled, and to the freeends of said levers are pivotally connected rods 14, which rods extenddownward and are connected to the foot-levers 13, which footlevers areheld in a lowered position or fixed adjustment by means of the rack-bar16, which rack-bar is so located that the lip 17 will engage a tooth ofthe rack-bar 16. It will be understood that the levers 13 should be soconnected at their pivotal points that sufficient lateral movement canbe given to and at the same time, if so desired, to give the entiresurface of the sheets the desired formation the rolls 3 and 4 should beso adjusted that when the sheets enter between the rolls the large endsof the ribs should be exactly opposite or adjacent each other that is tosay, the large ends of the ribs of the upper roll and the large ends ofthe ribs of the lower roll should be in such a position that they willcoact to produce the proper configuration upon the sheets. It will,however, be understood that if the sheets are tapered and in the eventthe large ends of the sheets are so entered then in that event the largeends of the ribs should first act; but I do not desire to be confined tothis particular manner of feeding the sheets between the rolls, as itwill be readily seen that if the narrow or small end of the sheet isfirst entered then in that event the rolls 3 and 4 should be so rotatedthat the small ends of the ribs 11 will first act and the large endfinally corrugated as the sheets leave the rolls.

I do not desire to be confined to the manufacture of tapered columns;but by the use in my improvement I am enabled to first produce taperedcorrugations, fluted, or other formations which taper in size from oneend of the sheet to the other, which sheet when so formed can be usedfor any purpose wherein it is desired or found convenient to use in theconstruction of buildings sheet metal wherein the flutes or corrugationstaper.

For the purpose of allowing the sheets to pass from the rolls after theyhave been corrugated throughout their entire length the large ends ofthe corrugations or ribs are spaced from the smaller ends, by whicharrangement the sheets are free to pass from between the rolls beforethe second revolution of the rolls will bring the ribs into contact withthe sheets.

For the purpose of producing corrugations of different shapes and ofdifferent spaces between the corrugations, the ribs 11 are so attachedto the peripheries of the rolls that they can be moved to and from eachother, thereby regulating the distance between any two or more ribs.

It will be understood that the ribs 11 may be formed continuousthroughout their'entire length, or they may be made in sections and thesections so located as to form continuous beads or ribs. This, however,is simply mechanical, and does not enter into the invention in a sense,eXcept that it is convenient in arranging the ribs upon the peripheriesof the rolls wherein large rolls are employed.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a corrugating-machine, the combination of rolls, a series of ribslocated upon the peripheries of the rolls, said ribs spaced from eachother and each rib adapted to form a corrugation or flute, said ribstapered throughout their entire length, and one rib of the serieslocated in a plane at right angles to the axles of the rolls,substantially as and for the purpose specified.

2. In a corrugating-machine, the combination of rolls mounted uponshafts, said shafts located at right angles to the rotation of therolls, a series of ribs spirally mounted upon the peripheries of therolls, and an intermediate rib located at right angles to the rotationof the rolls, substantially as and for the purpose specified.

3. In a corrugating-machine, the combination of rolls mounted uponshafts, said shafts located at right angles to the rotation of therolls,a series of ribs spirally mounted upon the peripheries of therolls, an intermediate rib located at right angles to the rotation ofthe rolls, and the ribs adjustable to and from each other substantiallyas and for the purpose specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

ISAAC W. NUMAN. Witnesses:

J. A. JEFFERs, F. W. BOND.

